Tags: U.S. Department of Energy’s Argonne National Laboratory engineer

For a third week in a row, the national average retail price of diesel rose, climbing 6.7 cents to $3.892 in the latest week, according to the U.S. Department of Energy’s Energy Information Administration.
Average prices increased in ...

It may be hard to believe, but the beloved gasoline engine that powers more than 200 million cars across America every day didn't get its status because it's the most efficient engine.
Diesel engines can be more than twice as efficient, ...